diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 00000000..c832fc93
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1,3 @@
+build
+coverage
+packages
diff --git a/.prettierrc.cjs b/.prettierrc.cjs
new file mode 100644
index 00000000..80405cbb
--- /dev/null
+++ b/.prettierrc.cjs
@@ -0,0 +1,4 @@
+// Copyright 2017-2021 @polkadot/ui authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+module.exports = require('@polkadot/dev/config/prettier.cjs');